Wärtsilä to power ammonia retrofit of offshore supply vessel

Wärtsilä, Eidesvik and Equinor are working together to convert the vessel Viking Energy to ammonia power, said to be the first project of its kind.  

Peter Tubaas / Equinor

Currently powered by LNG (liquid natural gas), the offshore platform supply vessel (PSV) is owned by Norwegian shipping operator Eidesvik and on contract with Norway’s state-owned oil and gas major, Equinor. Finland’s Wärtsilä will supply the vessel with its recently launched Wärtsilä 25 Ammonia engine as well as the complete fuel gas supply system and exhaust after-treatment needed for the conversion.

According to Wärtsilä, Viking Energy will be the first vessel to deploy the company’s ammonia solution. The PSV is scheduled to be fully converted and operational by 2026.

“In just 25 years – the lifetime of a single vessel – shipping needs to get to net zero emissions,” said Håkan Agnevall, president and CEO of Wärtsilä. “Achieving this will require coordinated action by all maritime industry stakeholders to bring about the system change needed to accept a new generation of sustainable fuels.

“With this new contract, together with Eidesvik, Wärtsilä is proud to be at the forefront of this movement. Decarbonisation is front and centre of our strategy and we are committed to developing and delivering sustainable solutions which not only ensure the viability of sustainable fuels, but also their safety.” 

In addition to supplying the engine, Wärtsilä will supply its AmmoniaPac Fuel Gas Supply System, the Wärtsilä Ammonia Release Mitigation System (WARMS), and a selective catalytic reduction (SCR) system designed for ammonia. A service agreement covering maintenance is also part of the deal.

In addition to deploying the vessel in its offshore operations, Equinor will contribute ‘significantly’ to funding the conversion of Viking Energy to ammonia operation. The project will also receive €5m via the EU Horizon Europe programme. 

“Close collaboration throughout the value chain is key to succeed in the green transition,” said Gitte Gard Talmo, CEO & president of Eidesvik Offshore.

“Eidesvik has a unique history of pioneering the implementation of innovative emission-reducing technologies, and we are proud to spearhead yet another groundbreaking project together with Wärtsilä and Equinor.”